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cells

Art for "Dormant Microbes Bide Their Time Over Decades - Old Fires"
ecology

Heat-Loving Microbes, Once Dormant, Thrive Over Decades-Old Fire

In harsh ecosystems around the world, microbiologists are finding evidence that “microbial seed banks” protect biodiversity from changing conditions.

Art for "Researchers Rethink Ancestry of Complex Cells"
evolution

Researchers Rethink the Ancestry of Complex Cells

New studies revise ideas about the symbiosis that gave mitochondria to cells and about whether the last common ancestor of all eukaryotes was one cell or many.

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cognitive science

How the Brain Links Gestures, Perception and Meaning

Neuroscience has found that gestures are not merely important as tools of expression but as guides of cognition and perception.

Art for "Mitochondria Direct the Fate of Stem Cells by Shape-Shifting"
developmental biology

Biologists Discover Unknown Powers in Mighty Mitochondria

Mitochondria are most famous as sources of metabolic energy. But by splitting and combining, they can also release chemical signals to regulate cell activities, including the generation of neurons.

Abstractions blog

What Defines a Stem Cell? Scientists Rethink the Answer

As it becomes clear that the body’s cells have more diverse regenerative capabilities than expected, experts have had to reconsider their approach to stem cell research.

Art for "‘Lava-Lamp’ Proteins Inside Cells May Protect and Regulate"
cell biology

‘Lava-Lamp’ Proteins May Help Cells Cheat Death

With proteins that reversibly self-assemble into droplets, cells may control their metabolism — and harden themselves against harsh conditions.

Photo of Lisa Manning
Q&A

The Physics of Glass Opens a Window Into Biology

The physicist Lisa Manning studies the dynamics of glassy materials to understand embryonic development and disease.

Image for "Cells Talk and Help One Another via Tiny Tube Networks"
microbiology

Cells Talk and Help One Another via Tiny Tube Networks

Long-overlooked “tunneling nanotubes” and other bridges between cells act as conduits for sharing RNA, proteins or even whole organelles.

520px illustration of genome packaging
genomics

How Cells Pack Tangled DNA Into Neat Chromosomes

For the first time, researchers see how proteins grab loops of DNA and bundle them for cell division. The discovery also hints at how the genome folds to regulate gene expression.